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runtime: remove spurious register loads for openbsd/amd64 kqueue

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The kqueue system call takes no arguments, hence there should be no need
to zero the registers used for the first syscall arguments.

Change-Id: Ia79b2d4f4d568bb6795cb885e1464cf1fc2bf7c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/174128
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
This commit is contained in:
Joel Sing 2019-04-28 18:02:36 +10:00 committed by Benny Siegert
parent 049c8dbfdb
commit 6b692300a1
1 changed files with 0 additions and 3 deletions
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3
src/runtime/sys_openbsd_amd64.s
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@ -348,9 +348,6 @@ TEXT runtime·sysctl(SB),NOSPLIT,$0
// int32 runtime·kqueue(void);
TEXT runtime·kqueue(SB),NOSPLIT,$0
MOVQ $0, DI
MOVQ $0, SI
MOVQ $0, DX
MOVL $269, AX
SYSCALL
JCC 2(PC)